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openmptcprouter/6.12/target/linux/bcm27xx/patches-6.12/950-0510-drm-panel-ili9881-Correct-symmetry-on-enable-disable.patch
Ycarus (Yannick Chabanois) bdb9b0046f Add bcm27xx 6.12 test support
2024-12-20 14:17:26 +01:00

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From 05957e50503d530abb813623b9d011ad5020b344 Mon Sep 17 00:00:00 2001
From: Dave Stevenson <dave.stevenson@raspberrypi.com>
Date: Fri, 13 Sep 2024 14:44:08 +0100
Subject: [PATCH 510/697] drm: panel: ili9881: Correct symmetry on
enable/disable return codes
ili9881c_enable is always returning 0.
ili9881c_disable was returning the error code from
mipi_dsi_dcs_set_display_off.
If non-zero, the drm_panel framework will leave the panel marked as
enabled, and not run the enable hook next time around. That isn't
helpful, particularly as we're expecting unprepare to disable
resets and regulators.
Change ili9881c_disable to match enable in always returning 0.
Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
---
drivers/gpu/drm/panel/panel-ilitek-ili9881c.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
--- a/drivers/gpu/drm/panel/panel-ilitek-ili9881c.c
+++ b/drivers/gpu/drm/panel/panel-ilitek-ili9881c.c
@@ -2138,7 +2138,9 @@ static int ili9881c_disable(struct drm_p
{
struct ili9881c *ctx = panel_to_ili9881c(panel);
- return mipi_dsi_dcs_set_display_off(ctx->dsi);
+ mipi_dsi_dcs_set_display_off(ctx->dsi);
+
+ return 0;
}
static int ili9881c_unprepare(struct drm_panel *panel)